1961532 has 54 divisors (see below), whose sum is σ = 5233592. Its totient is φ = 619344.

The previous prime is 1961527. The next prime is 1961537. The reversal of 1961532 is 2351691.

1961532 is a `hidden beast` number, since 19 + 615 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (1961527) and next prime (1961537).

It is a junction number, because it is equal to n+sod(n) for n = 1961496 and 1961505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961537) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18993 + ... + 19095.

2^1961532 is an apocalyptic number.

1961532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1961532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2616796).

1961532 is an abundant number, since it is smaller than the sum of its proper divisors (3272060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961532 is a wasteful number, since it uses less digits than its factorization.

1961532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 131 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 1961532 is about 1400.5470359827. The cubic root of 1961532 is about 125.1790926175.

It can be divided in two parts, 196 and 1532, that added together give a cube (1728 = 12³).

The spelling of 1961532 in words is "one million, nine hundred sixty-one thousand, five hundred thirty-two".