145343512550 has 24 divisors (see below), whose sum is σ = 270368282376. Its totient is φ = 58131093440.

The previous prime is 145343512547. The next prime is 145343512637. The reversal of 145343512550 is 55215343541.

It is a super-2 number, since 2×145343512550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321809 + ... + 627891.

It is an arithmetic number, because the mean of its divisors is an integer number (11265345099).

Almost surely, 2^145343512550 is an apocalyptic number.

145343512550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145343512550 is a deficient number, since it is larger than the sum of its proper divisors (125024769826).

145343512550 is a wasteful number, since it uses less digits than its factorization.

145343512550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315592 (or 315587 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 145343512550 in words is "one hundred forty-five billion, three hundred forty-three million, five hundred twelve thousand, five hundred fifty".