1545453550 has 12 divisors (see below), whose sum is σ = 2874543696. Its totient is φ = 618181400.

The previous prime is 1545453541. The next prime is 1545453563. The reversal of 1545453550 is 553545451.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15454486 + ... + 15454585.

It is an arithmetic number, because the mean of its divisors is an integer number (239545308).

Almost surely, 2^1545453550 is an apocalyptic number.

1545453550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1545453550 is a deficient number, since it is larger than the sum of its proper divisors (1329090146).

1545453550 is a wasteful number, since it uses less digits than its factorization.

1545453550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30909083 (or 30909078 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 37.

The square root of 1545453550 is about 39312.2569944795. The cubic root of 1545453550 is about 1156.1618961843.

The spelling of 1545453550 in words is "one billion, five hundred forty-five million, four hundred fifty-three thousand, five hundred fifty".