1950031139 has 16 divisors (see below), whose sum is σ = 2266978560. Its totient is φ = 1642917600.

The previous prime is 1950031073. The next prime is 1950031147. The reversal of 1950031139 is 9311300591.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1950031139 - 2¹² = 1950027043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1950031159) 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, 88352 + ... + 108194.

It is an arithmetic number, because the mean of its divisors is an integer number (141686160).

Almost surely, 2^1950031139 is an apocalyptic number.

1950031139 is a deficient number, since it is larger than the sum of its proper divisors (316947421).

1950031139 is a wasteful number, since it uses less digits than its factorization.

1950031139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20090.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 1950031139 is about 44159.1569099773. The cubic root of 1950031139 is about 1249.3396275080.

The spelling of 1950031139 in words is "one billion, nine hundred fifty million, thirty-one thousand, one hundred thirty-nine".