1157382471 has 16 divisors (see below), whose sum is σ = 1840310784. Its totient is φ = 632606304.

The previous prime is 1157382449. The next prime is 1157382487. The reversal of 1157382471 is 1742837511.

It is a happy number.

It is not a de Polignac number, because 1157382471 - 2¹⁴ = 1157366087 is a prime.

It is a super-3 number, since 3×1157382471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157382371) 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, 1197636 + ... + 1198601.

It is an arithmetic number, because the mean of its divisors is an integer number (115019424).

Almost surely, 2^1157382471 is an apocalyptic number.

1157382471 is a deficient number, since it is larger than the sum of its proper divisors (682928313).

1157382471 is a wasteful number, since it uses less digits than its factorization.

1157382471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396270.

The product of its digits is 47040, while the sum is 39.

The square root of 1157382471 is about 34020.3243811696. The cubic root of 1157382471 is about 1049.9266678945.

The spelling of 1157382471 in words is "one billion, one hundred fifty-seven million, three hundred eighty-two thousand, four hundred seventy-one".