615225097 has 2 divisors, whose sum is σ = 615225098. Its totient is φ = 615225096.

The previous prime is 615225071. The next prime is 615225139. The reversal of 615225097 is 790522516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426876921 + 188348176 = 20661^2 + 13724^2 .

It is a cyclic number.

It is not a de Polignac number, because 615225097 - 2¹⁵ = 615192329 is a prime.

It is not a weakly prime, because it can be changed into another prime (615225197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307612548 + 307612549.

It is an arithmetic number, because the mean of its divisors is an integer number (307612549).

Almost surely, 2^615225097 is an apocalyptic number.

It is an amenable number.

615225097 is a deficient number, since it is larger than the sum of its proper divisors (1).

615225097 is an equidigital number, since it uses as much as digits as its factorization.

615225097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 615225097 is about 24803.7315136251. The cubic root of 615225097 is about 850.5072391124.

It can be divided in two parts, 61522509 and 7, that added together give a palindrome (61522516).

The spelling of 615225097 in words is "six hundred fifteen million, two hundred twenty-five thousand, ninety-seven".