1354991451 has 16 divisors (see below), whose sum is σ = 2000316288. Its totient is φ = 808948800.

The previous prime is 1354991437. The next prime is 1354991459. The reversal of 1354991451 is 1541994531.

It is not a de Polignac number, because 1354991451 - 2⁵ = 1354991419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1354991459) 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, 304210 + ... + 308631.

It is an arithmetic number, because the mean of its divisors is an integer number (125019768).

Almost surely, 2^1354991451 is an apocalyptic number.

1354991451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1354991451 is a deficient number, since it is larger than the sum of its proper divisors (645324837).

1354991451 is a wasteful number, since it uses less digits than its factorization.

1354991451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612922.

The product of its digits is 97200, while the sum is 42.

The square root of 1354991451 is about 36810.2085161168. The cubic root of 1354991451 is about 1106.5698974372.

The spelling of 1354991451 in words is "one billion, three hundred fifty-four million, nine hundred ninety-one thousand, four hundred fifty-one".