1022252156 has 24 divisors (see below), whose sum is σ = 1857362304. Its totient is φ = 491768640.

The previous prime is 1022252149. The next prime is 1022252171. The reversal of 1022252156 is 6512522201.

It is a super-3 number, since 3×1022252156³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375 + ... + 45278.

It is an arithmetic number, because the mean of its divisors is an integer number (77390096).

Almost surely, 2^1022252156 is an apocalyptic number.

It is an amenable number.

1022252156 is a deficient number, since it is larger than the sum of its proper divisors (835110148).

1022252156 is a wasteful number, since it uses less digits than its factorization.

1022252156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47861 (or 47859 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1022252156 is about 31972.6782738012. The cubic root of 1022252156 is about 1007.3630379448.

Adding to 1022252156 its reverse (6512522201), we get a palindrome (7534774357).

The spelling of 1022252156 in words is "one billion, twenty-two million, two hundred fifty-two thousand, one hundred fifty-six".