45155131 has 4 divisors (see below), whose sum is σ = 51605872. Its totient is φ = 38704392.

The previous prime is 45155113. The next prime is 45155137. The reversal of 45155131 is 13155154.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45155131 - 2¹¹ = 45153083 is a prime.

It is a super-2 number, since 2×45155131² = 4077971711254322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45155096 and 45155105.

It is not an unprimeable number, because it can be changed into a prime (45155137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3225360 + ... + 3225373.

It is an arithmetic number, because the mean of its divisors is an integer number (12901468).

Almost surely, 2^45155131 is an apocalyptic number.

45155131 is a deficient number, since it is larger than the sum of its proper divisors (6450741).

45155131 is an equidigital number, since it uses as much as digits as its factorization.

45155131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6450740.

The product of its digits is 1500, while the sum is 25.

The square root of 45155131 is about 6719.7567664314. The cubic root of 45155131 is about 356.0975908646.

The spelling of 45155131 in words is "forty-five million, one hundred fifty-five thousand, one hundred thirty-one".