145950551 has 2 divisors, whose sum is σ = 145950552. Its totient is φ = 145950550.

The previous prime is 145950547. The next prime is 145950577. The reversal of 145950551 is 155059541.

145950551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145950551 - 2² = 145950547 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145950521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72975275 + 72975276.

It is an arithmetic number, because the mean of its divisors is an integer number (72975276).

Almost surely, 2^145950551 is an apocalyptic number.

145950551 is a deficient number, since it is larger than the sum of its proper divisors (1).

145950551 is an equidigital number, since it uses as much as digits as its factorization.

145950551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 145950551 is about 12080.9995861270. Note that the first 3 decimals coincide. The cubic root of 145950551 is about 526.5042885005.

The spelling of 145950551 in words is "one hundred forty-five million, nine hundred fifty thousand, five hundred fifty-one".