1955151 has 32 divisors (see below), whose sum is σ = 3283200. Its totient is φ = 1139040.

The previous prime is 1955141. The next prime is 1955179. The reversal of 1955151 is 1515591.

It is not a de Polignac number, because 1955151 - 2⁹ = 1954639 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8500 + ... + 8726.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

2^1955151 is an apocalyptic number.

1955151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1955151 is a deficient number, since it is larger than the sum of its proper divisors (1328049).

1955151 is a wasteful number, since it uses less digits than its factorization.

1955151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 270 counting only the distinct ones).

The product of its digits is 1125, while the sum is 27.

The square root of 1955151 is about 1398.2671418581. The cubic root of 1955151 is about 125.0432063973.

The spelling of 1955151 in words is "one million, nine hundred fifty-five thousand, one hundred fifty-one".