1021114157 has 16 divisors (see below), whose sum is σ = 1208390400. Its totient is φ = 844247040.

The previous prime is 1021114153. The next prime is 1021114181. The reversal of 1021114157 is 7514111201.

It is not a de Polignac number, because 1021114157 - 2² = 1021114153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021114153) 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, 305069 + ... + 308397.

It is an arithmetic number, because the mean of its divisors is an integer number (75524400).

Almost surely, 2^1021114157 is an apocalyptic number.

It is an amenable number.

1021114157 is a deficient number, since it is larger than the sum of its proper divisors (187276243).

1021114157 is a wasteful number, since it uses less digits than its factorization.

1021114157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 1021114157 is about 31954.8768891385. The cubic root of 1021114157 is about 1006.9890911388.

Adding to 1021114157 its reverse (7514111201), we get a palindrome (8535225358).

The spelling of 1021114157 in words is "one billion, twenty-one million, one hundred fourteen thousand, one hundred fifty-seven".