1270157447 has 8 divisors (see below), whose sum is σ = 1369310544. Its totient is φ = 1171211328.

The previous prime is 1270157419. The next prime is 1270157459. The reversal of 1270157447 is 7447510721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1270157447 - 2¹⁴ = 1270141063 is a prime.

It is a super-2 number, since 2×1270157447² = 3226599880339115618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1270157447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270157407) 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, 38873 + ... + 63650.

It is an arithmetic number, because the mean of its divisors is an integer number (171163818).

Almost surely, 2^1270157447 is an apocalyptic number.

1270157447 is a deficient number, since it is larger than the sum of its proper divisors (99153097).

1270157447 is a wasteful number, since it uses less digits than its factorization.

1270157447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103489.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 1270157447 is about 35639.2683286287. The cubic root of 1270157447 is about 1082.9768827979.

The spelling of 1270157447 in words is "one billion, two hundred seventy million, one hundred fifty-seven thousand, four hundred forty-seven".