1270147645 has 16 divisors (see below), whose sum is σ = 1642177152. Its totient is φ = 937523520.

The previous prime is 1270147643. The next prime is 1270147649. The reversal of 1270147645 is 5467410721.

It is not a de Polignac number, because 1270147645 - 2¹ = 1270147643 is a prime.

It is a super-2 number, since 2×1270147645² = 3226550080198092050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270147643) 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, 235954 + ... + 241276.

It is an arithmetic number, because the mean of its divisors is an integer number (102636072).

Almost surely, 2^1270147645 is an apocalyptic number.

It is an amenable number.

1270147645 is a deficient number, since it is larger than the sum of its proper divisors (372029507).

1270147645 is a wasteful number, since it uses less digits than its factorization.

1270147645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9012.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 1270147645 is about 35639.1308115111. The cubic root of 1270147645 is about 1082.9740969578.

The spelling of 1270147645 in words is "one billion, two hundred seventy million, one hundred forty-seven thousand, six hundred forty-five".