145311470 has 16 divisors (see below), whose sum is σ = 272933280. Its totient is φ = 55597344.

The previous prime is 145311443. The next prime is 145311479. The reversal of 145311470 is 74113541.

145311470 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-4 number, since 4×145311470⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145311479) 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, 315665 + ... + 316124.

It is an arithmetic number, because the mean of its divisors is an integer number (17058330).

Almost surely, 2^145311470 is an apocalyptic number.

145311470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145311470 is a deficient number, since it is larger than the sum of its proper divisors (127621810).

145311470 is a wasteful number, since it uses less digits than its factorization.

145311470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631819.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 145311470 is about 12054.5207287557. The cubic root of 145311470 is about 525.7346871935.

The spelling of 145311470 in words is "one hundred forty-five million, three hundred eleven thousand, four hundred seventy".