1226361057 has 16 divisors (see below), whose sum is σ = 1642887168. Its totient is φ = 813715200.

The previous prime is 1226361053. The next prime is 1226361119. The reversal of 1226361057 is 7501636221.

It is not a de Polignac number, because 1226361057 - 2² = 1226361053 is a prime.

It is a super-2 number, since 2×1226361057² = 3007922884252314498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226361053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736608 + ... + 738270.

It is an arithmetic number, because the mean of its divisors is an integer number (102680448).

Almost surely, 2^1226361057 is an apocalyptic number.

It is an amenable number.

1226361057 is a deficient number, since it is larger than the sum of its proper divisors (416526111).

1226361057 is a wasteful number, since it uses less digits than its factorization.

1226361057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1226361057 is about 35019.4382736217. The cubic root of 1226361057 is about 1070.3836097974.

Adding to 1226361057 its reverse (7501636221), we get a palindrome (8727997278).

The spelling of 1226361057 in words is "one billion, two hundred twenty-six million, three hundred sixty-one thousand, fifty-seven".