1251960 has 32 divisors (see below), whose sum is σ = 3756240. Its totient is φ = 333824.

The previous prime is 1251953. The next prime is 1251961. The reversal of 1251960 is 691521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1251960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5097 + ... + 5336.

2^1251960 is an apocalyptic number.

1251960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1251960 is an abundant number, since it is smaller than the sum of its proper divisors (2504280).

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

1251960 is a wasteful number, since it uses less digits than its factorization.

1251960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10447 (or 10443 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1251960 is about 1118.9101840630. The cubic root of 1251960 is about 107.7780076596.

It can be divided in two parts, 1251 and 960, that added together give a triangular number (2211 = T₆₆).

The spelling of 1251960 in words is "one million, two hundred fifty-one thousand, nine hundred sixty".