45461531 has 16 divisors (see below), whose sum is σ = 49401600. Its totient is φ = 41731200.

The previous prime is 45461527. The next prime is 45461543. The reversal of 45461531 is 13516454.

It is a happy number.

45461531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 45461531 - 2² = 45461527 is a prime.

It is a super-2 number, since 2×45461531² = 4133501601727922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 45461494 and 45461503.

It is not an unprimeable number, because it can be changed into a prime (45461551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54425 + ... + 55253.

It is an arithmetic number, because the mean of its divisors is an integer number (3087600).

Almost surely, 2^45461531 is an apocalyptic number.

45461531 is a deficient number, since it is larger than the sum of its proper divisors (3940069).

45461531 is a wasteful number, since it uses less digits than its factorization.

45461531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950.

The product of its digits is 7200, while the sum is 29.

The square root of 45461531 is about 6742.5166666461. The cubic root of 45461531 is about 356.9012089760.

Adding to 45461531 its reverse (13516454), we get a palindrome (58977985).

The spelling of 45461531 in words is "forty-five million, four hundred sixty-one thousand, five hundred thirty-one".