145691355 has 16 divisors (see below), whose sum is σ = 237058560. Its totient is φ = 76384608.

The previous prime is 145691347. The next prime is 145691387. The reversal of 145691355 is 553196541.

It is a happy number.

It is not a de Polignac number, because 145691355 - 2³ = 145691347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81427 + ... + 83196.

It is an arithmetic number, because the mean of its divisors is an integer number (14816160).

Almost surely, 2^145691355 is an apocalyptic number.

145691355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145691355 is a deficient number, since it is larger than the sum of its proper divisors (91367205).

145691355 is a wasteful number, since it uses less digits than its factorization.

145691355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164690.

The product of its digits is 81000, while the sum is 39.

The square root of 145691355 is about 12070.2673955468. The cubic root of 145691355 is about 526.1924279204.

The spelling of 145691355 in words is "one hundred forty-five million, six hundred ninety-one thousand, three hundred fifty-five".