1955172 has 24 divisors (see below), whose sum is σ = 4638592. Its totient is φ = 640800.

The previous prime is 1955141. The next prime is 1955179. The reversal of 1955172 is 2715591.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955179) 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, 604 + ... + 2067.

2^1955172 is an apocalyptic number.

1955172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1955172 is an abundant number, since it is smaller than the sum of its proper divisors (2683420).

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

1955172 is a wasteful number, since it uses less digits than its factorization.

1955172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2737 counting only the distinct ones).

The product of its digits is 3150, while the sum is 30.

The square root of 1955172 is about 1398.2746511326. The cubic root of 1955172 is about 125.0436540861.

The spelling of 1955172 in words is "one million, nine hundred fifty-five thousand, one hundred seventy-two".