1226554137 has 8 divisors (see below), whose sum is σ = 1817117280. Its totient is φ = 817702740.

The previous prime is 1226554081. The next prime is 1226554157. The reversal of 1226554137 is 7314556221.

1226554137 is a `hidden beast` number, since 1 + 22 + 65 + 541 + 37 = 666.

It is not a de Polignac number, because 1226554137 - 2²² = 1222359833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226554157) 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, 22713939 + ... + 22713992.

It is an arithmetic number, because the mean of its divisors is an integer number (227139660).

Almost surely, 2^1226554137 is an apocalyptic number.

It is an amenable number.

1226554137 is a deficient number, since it is larger than the sum of its proper divisors (590563143).

1226554137 is an equidigital number, since it uses as much as digits as its factorization.

1226554137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45427940 (or 45427934 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 1226554137 is about 35022.1949197934. The cubic root of 1226554137 is about 1070.4397810805.

The spelling of 1226554137 in words is "one billion, two hundred twenty-six million, five hundred fifty-four thousand, one hundred thirty-seven".