45026981 has 2 divisors, whose sum is σ = 45026982. Its totient is φ = 45026980.

The previous prime is 45026959. The next prime is 45027007. The reversal of 45026981 is 18962054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43890625 + 1136356 = 6625^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 45026981 - 2¹⁰ = 45025957 is a prime.

It is a super-2 number, since 2×45026981² = 4054858035948722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45026581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22513490 + 22513491.

It is an arithmetic number, because the mean of its divisors is an integer number (22513491).

Almost surely, 2^45026981 is an apocalyptic number.

It is an amenable number.

45026981 is a deficient number, since it is larger than the sum of its proper divisors (1).

45026981 is an equidigital number, since it uses as much as digits as its factorization.

45026981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 45026981 is about 6710.2146761486. The cubic root of 45026981 is about 355.7604040523.

The spelling of 45026981 in words is "forty-five million, twenty-six thousand, nine hundred eighty-one".