145142654 has 4 divisors (see below), whose sum is σ = 217713984. Its totient is φ = 72571326.

The previous prime is 145142639. The next prime is 145142677. The reversal of 145142654 is 456241541.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145142654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36285662 + ... + 36285665.

It is an arithmetic number, because the mean of its divisors is an integer number (54428496).

Almost surely, 2^145142654 is an apocalyptic number.

145142654 is a deficient number, since it is larger than the sum of its proper divisors (72571330).

145142654 is an equidigital number, since it uses as much as digits as its factorization.

145142654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72571329.

The product of its digits is 19200, while the sum is 32.

The square root of 145142654 is about 12047.5165075629. The cubic root of 145142654 is about 525.5310170620.

The spelling of 145142654 in words is "one hundred forty-five million, one hundred forty-two thousand, six hundred fifty-four".