145153240 has 32 divisors (see below), whose sum is σ = 329099760. Its totient is φ = 57616000.

The previous prime is 145153231. The next prime is 145153279. The reversal of 145153240 is 42351541.

It is a happy number.

145153240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8611 + ... + 19090.

Almost surely, 2^145153240 is an apocalyptic number.

145153240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145153240 is an abundant number, since it is smaller than the sum of its proper divisors (183946520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145153240 is a wasteful number, since it uses less digits than its factorization.

145153240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27843 (or 27839 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145153240 is about 12047.9558432126. The cubic root of 145153240 is about 525.5437933111.

The spelling of 145153240 in words is "one hundred forty-five million, one hundred fifty-three thousand, two hundred forty".