46145551 has 4 divisors (see below), whose sum is σ = 46216872. Its totient is φ = 46074232.

The previous prime is 46145543. The next prime is 46145557. The reversal of 46145551 is 15554164.

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 46145551 - 2³ = 46145543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46145557) 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, 34681 + ... + 35986.

It is an arithmetic number, because the mean of its divisors is an integer number (11554218).

Almost surely, 2^46145551 is an apocalyptic number.

46145551 is a deficient number, since it is larger than the sum of its proper divisors (71321).

46145551 is an equidigital number, since it uses as much as digits as its factorization.

46145551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71320.

The product of its digits is 12000, while the sum is 31.

The square root of 46145551 is about 6793.0516706411. The cubic root of 46145551 is about 358.6822995026.

The spelling of 46145551 in words is "forty-six million, one hundred forty-five thousand, five hundred fifty-one".