150420551 has 2 divisors, whose sum is σ = 150420552. Its totient is φ = 150420550.

The previous prime is 150420547. The next prime is 150420629. The reversal of 150420551 is 155024051.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 150420551 - 2² = 150420547 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 (150420541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75210275 + 75210276.

It is an arithmetic number, because the mean of its divisors is an integer number (75210276).

Almost surely, 2^150420551 is an apocalyptic number.

150420551 is a deficient number, since it is larger than the sum of its proper divisors (1).

150420551 is an equidigital number, since it uses as much as digits as its factorization.

150420551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 150420551 is about 12264.6056194237. The cubic root of 150420551 is about 531.8253791662.

The spelling of 150420551 in words is "one hundred fifty million, four hundred twenty thousand, five hundred fifty-one".