1033139977 has 4 divisors (see below), whose sum is σ = 1035866320. Its totient is φ = 1030413636.

The previous prime is 1033139951. The next prime is 1033139983. The reversal of 1033139977 is 7799313301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7799313301 = 13 ⋅599947177.

It is a cyclic number.

It is not a de Polignac number, because 1033139977 - 2²⁷ = 898922249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1033139917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1362603 + ... + 1363360.

It is an arithmetic number, because the mean of its divisors is an integer number (258966580).

Almost surely, 2^1033139977 is an apocalyptic number.

It is an amenable number.

1033139977 is a deficient number, since it is larger than the sum of its proper divisors (2726343).

1033139977 is an equidigital number, since it uses as much as digits as its factorization.

1033139977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726342.

The product of its (nonzero) digits is 107163, while the sum is 43.

The square root of 1033139977 is about 32142.4948782760. The cubic root of 1033139977 is about 1010.9268285462.

The spelling of 1033139977 in words is "one billion, thirty-three million, one hundred thirty-nine thousand, nine hundred seventy-seven".