1954479135 has 32 divisors (see below), whose sum is σ = 3634490880. Its totient is φ = 878329728.

The previous prime is 1954479113. The next prime is 1954479167. The reversal of 1954479135 is 5319744591.

It is not a de Polignac number, because 1954479135 - 2¹⁶ = 1954413599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151552 + ... + 163941.

It is an arithmetic number, because the mean of its divisors is an integer number (113577840).

Almost surely, 2^1954479135 is an apocalyptic number.

1954479135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1954479135 is a deficient number, since it is larger than the sum of its proper divisors (1680011745).

1954479135 is a wasteful number, since it uses less digits than its factorization.

1954479135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315567.

The product of its digits is 680400, while the sum is 48.

The square root of 1954479135 is about 44209.4914582830. The cubic root of 1954479135 is about 1250.2888153967.

The spelling of 1954479135 in words is "one billion, nine hundred fifty-four million, four hundred seventy-nine thousand, one hundred thirty-five".