145416988 has 24 divisors (see below), whose sum is σ = 257671008. Its totient is φ = 71801856.

The previous prime is 145416911. The next prime is 145416989. The reversal of 145416988 is 889614541.

It is a super-2 number, since 2×145416988² = 42292200797984288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145416989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195345 + ... + 196087.

It is an arithmetic number, because the mean of its divisors is an integer number (10736292).

Almost surely, 2^145416988 is an apocalyptic number.

It is an amenable number.

145416988 is a deficient number, since it is larger than the sum of its proper divisors (112254020).

145416988 is a wasteful number, since it uses less digits than its factorization.

145416988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293 (or 1291 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 145416988 is about 12058.8966327770. The cubic root of 145416988 is about 525.8619105768.

The spelling of 145416988 in words is "one hundred forty-five million, four hundred sixteen thousand, nine hundred eighty-eight".