1351401057 has 8 divisors (see below), whose sum is σ = 2002075680. Its totient is φ = 900934020.

The previous prime is 1351401053. The next prime is 1351401059. The reversal of 1351401057 is 7501041531.

It is not a de Polignac number, because 1351401057 - 2² = 1351401053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 50051891 = 1351401057 / (1 + 3 + 5 + 1 + 4 + 0 + 1 + 0 + 5 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 1351401057.

It is not an unprimeable number, because it can be changed into a prime (1351401053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25025919 + ... + 25025972.

It is an arithmetic number, because the mean of its divisors is an integer number (250259460).

Almost surely, 2^1351401057 is an apocalyptic number.

It is an amenable number.

1351401057 is a deficient number, since it is larger than the sum of its proper divisors (650674623).

1351401057 is an equidigital number, since it uses as much as digits as its factorization.

1351401057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50051900 (or 50051894 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 1351401057 is about 36761.4071683879. The cubic root of 1351401057 is about 1105.5916535599.

Adding to 1351401057 its reverse (7501041531), we get a palindrome (8852442588).

The spelling of 1351401057 in words is "one billion, three hundred fifty-one million, four hundred one thousand, fifty-seven".