1958531023 has 2 divisors, whose sum is σ = 1958531024. Its totient is φ = 1958531022.

The previous prime is 1958531021. The next prime is 1958531041. The reversal of 1958531023 is 3201358591.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1958531023 - 2¹ = 1958531021 is a prime.

Together with 1958531021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1958531021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 979265511 + 979265512.

It is an arithmetic number, because the mean of its divisors is an integer number (979265512).

Almost surely, 2^1958531023 is an apocalyptic number.

1958531023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1958531023 is an equidigital number, since it uses as much as digits as its factorization.

1958531023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1958531023 is about 44255.2937285473. The cubic root of 1958531023 is about 1251.1522224870.

The spelling of 1958531023 in words is "one billion, nine hundred fifty-eight million, five hundred thirty-one thousand, twenty-three".