15042547213 has 2 divisors, whose sum is σ = 15042547214. Its totient is φ = 15042547212.

The previous prime is 15042547207. The next prime is 15042547253. The reversal of 15042547213 is 31274524051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13740997284 + 1301549929 = 117222^2 + 36077^2 .

It is a cyclic number.

It is not a de Polignac number, because 15042547213 - 2⁵ = 15042547181 is a prime.

It is a super-3 number, since 3×15042547213³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15042547253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7521273606 + 7521273607.

It is an arithmetic number, because the mean of its divisors is an integer number (7521273607).

Almost surely, 2^15042547213 is an apocalyptic number.

It is an amenable number.

15042547213 is a deficient number, since it is larger than the sum of its proper divisors (1).

15042547213 is an equidigital number, since it uses as much as digits as its factorization.

15042547213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 15042547213 in words is "fifteen billion, forty-two million, five hundred forty-seven thousand, two hundred thirteen".