45145501231 has 4 divisors (see below), whose sum is σ = 45146877552. Its totient is φ = 45144124912.

The previous prime is 45145501229. The next prime is 45145501241. The reversal of 45145501231 is 13210554154.

45145501231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45145501231 - 2¹ = 45145501229 is a prime.

It is a super-2 number, since 2×45145501231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45145501193 and 45145501202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45145501241) 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, 637726 + ... + 704971.

It is an arithmetic number, because the mean of its divisors is an integer number (11286719388).

Almost surely, 2^45145501231 is an apocalyptic number.

45145501231 is a deficient number, since it is larger than the sum of its proper divisors (1376321).

45145501231 is a wasteful number, since it uses less digits than its factorization.

45145501231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376320.

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

The spelling of 45145501231 in words is "forty-five billion, one hundred forty-five million, five hundred one thousand, two hundred thirty-one".