45156021 has 8 divisors (see below), whose sum is σ = 61835424. Its totient is φ = 29290320.

The previous prime is 45156011. The next prime is 45156031. The reversal of 45156021 is 12065154.

It is an interprime number because it is at equal distance from previous prime (45156011) and next prime (45156031).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45156021 - 2¹¹ = 45153973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45155982 and 45156000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45156011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203295 + ... + 203516.

It is an arithmetic number, because the mean of its divisors is an integer number (7729428).

Almost surely, 2^45156021 is an apocalyptic number.

It is an amenable number.

45156021 is a deficient number, since it is larger than the sum of its proper divisors (16679403).

45156021 is a wasteful number, since it uses less digits than its factorization.

45156021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406851.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 45156021 is about 6719.8229887401. The cubic root of 45156021 is about 356.0999303904.

The spelling of 45156021 in words is "forty-five million, one hundred fifty-six thousand, twenty-one".