342111557 has 2 divisors, whose sum is σ = 342111558. Its totient is φ = 342111556.

The previous prime is 342111547. The next prime is 342111589. The reversal of 342111557 is 755111243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342028036 + 83521 = 18494^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 342111557 - 2⁴ = 342111541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342111547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171055778 + 171055779.

It is an arithmetic number, because the mean of its divisors is an integer number (171055779).

Almost surely, 2^342111557 is an apocalyptic number.

It is an amenable number.

342111557 is a deficient number, since it is larger than the sum of its proper divisors (1).

342111557 is an equidigital number, since it uses as much as digits as its factorization.

342111557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 29.

The square root of 342111557 is about 18496.2579188332. The cubic root of 342111557 is about 699.3950944277.

The spelling of 342111557 in words is "three hundred forty-two million, one hundred eleven thousand, five hundred fifty-seven".