2151464534 has 4 divisors (see below), whose sum is σ = 3227196804. Its totient is φ = 1075732266.

The previous prime is 2151464531. The next prime is 2151464543. The reversal of 2151464534 is 4354641512.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2151464494 and 2151464503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151464531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537866132 + ... + 537866135.

It is an arithmetic number, because the mean of its divisors is an integer number (806799201).

Almost surely, 2^2151464534 is an apocalyptic number.

2151464534 is a deficient number, since it is larger than the sum of its proper divisors (1075732270).

2151464534 is a wasteful number, since it uses less digits than its factorization.

2151464534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075732269.

The product of its digits is 57600, while the sum is 35.

The square root of 2151464534 is about 46383.8822652869. The cubic root of 2151464534 is about 1290.9558714711.

The spelling of 2151464534 in words is "two billion, one hundred fifty-one million, four hundred sixty-four thousand, five hundred thirty-four".