1956698141 has 2 divisors, whose sum is σ = 1956698142. Its totient is φ = 1956698140.

The previous prime is 1956698099. The next prime is 1956698173. The reversal of 1956698141 is 1418966591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1942605625 + 14092516 = 44075^2 + 3754^2 .

It is a cyclic number.

It is not a de Polignac number, because 1956698141 - 2¹⁰ = 1956697117 is a prime.

It is a super-2 number, since 2×1956698141² = 7657335229985711762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1956698141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1956698041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978349070 + 978349071.

It is an arithmetic number, because the mean of its divisors is an integer number (978349071).

Almost surely, 2^1956698141 is an apocalyptic number.

It is an amenable number.

1956698141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1956698141 is an equidigital number, since it uses as much as digits as its factorization.

1956698141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 50.

The square root of 1956698141 is about 44234.5808276737. The cubic root of 1956698141 is about 1250.7618057073.

The spelling of 1956698141 in words is "one billion, nine hundred fifty-six million, six hundred ninety-eight thousand, one hundred forty-one".