145417340 has 24 divisors (see below), whose sum is σ = 305690112. Its totient is φ = 58107200.

The previous prime is 145417331. The next prime is 145417343. The reversal of 145417340 is 43714541.

It is a happy number.

145417340 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145417340² = 42292405545351200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145417343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19862 + ... + 26178.

It is an arithmetic number, because the mean of its divisors is an integer number (12737088).

Almost surely, 2^145417340 is an apocalyptic number.

145417340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145417340 is an abundant number, since it is smaller than the sum of its proper divisors (160272772).

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

145417340 is a wasteful number, since it uses less digits than its factorization.

145417340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7477 (or 7475 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 145417340 is about 12058.9112278016. The cubic root of 145417340 is about 525.8623348813.

The spelling of 145417340 in words is "one hundred forty-five million, four hundred seventeen thousand, three hundred forty".