145561627 has 2 divisors, whose sum is σ = 145561628. Its totient is φ = 145561626.

The previous prime is 145561621. The next prime is 145561649. The reversal of 145561627 is 726165541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145561627 - 2²³ = 137173019 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145561621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72780813 + 72780814.

It is an arithmetic number, because the mean of its divisors is an integer number (72780814).

Almost surely, 2^145561627 is an apocalyptic number.

145561627 is a deficient number, since it is larger than the sum of its proper divisors (1).

145561627 is an equidigital number, since it uses as much as digits as its factorization.

145561627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 145561627 is about 12064.8923327148. The cubic root of 145561627 is about 526.0362023110.

The spelling of 145561627 in words is "one hundred forty-five million, five hundred sixty-one thousand, six hundred twenty-seven".