15275145 has 16 divisors (see below), whose sum is σ = 25727040. Its totient is φ = 7717824.

The previous prime is 15275137. The next prime is 15275147. The reversal of 15275145 is 54157251.

It is not a de Polignac number, because 15275145 - 2³ = 15275137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15275147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26514 + ... + 27083.

It is an arithmetic number, because the mean of its divisors is an integer number (1607940).

Almost surely, 2^15275145 is an apocalyptic number.

15275145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15275145 is a deficient number, since it is larger than the sum of its proper divisors (10451895).

15275145 is a wasteful number, since it uses less digits than its factorization.

15275145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53624.

The product of its digits is 7000, while the sum is 30.

The square root of 15275145 is about 3908.3429992773. The cubic root of 15275145 is about 248.1200045734.

The spelling of 15275145 in words is "fifteen million, two hundred seventy-five thousand, one hundred forty-five".