145356040 has 16 divisors (see below), whose sum is σ = 327051180. Its totient is φ = 58142400.

The previous prime is 145356037. The next prime is 145356047. The reversal of 145356040 is 40653541.

It can be written as a sum of positive squares in 2 ways, for example, as 137968516 + 7387524 = 11746^2 + 2718^2 .

It is a super-2 number, since 2×145356040² = 42256756728963200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145356047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1816911 + ... + 1816990.

Almost surely, 2^145356040 is an apocalyptic number.

145356040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145356040 is an abundant number, since it is smaller than the sum of its proper divisors (181695140).

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

145356040 is a wasteful number, since it uses less digits than its factorization.

145356040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633912 (or 3633908 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 145356040 is about 12056.3692710534. The cubic root of 145356040 is about 525.7884328928.

The spelling of 145356040 in words is "one hundred forty-five million, three hundred fifty-six thousand, forty".